When I run php bin/console doctrine:migrations:diff I always get the following newly generated migration:

<?php

declare(strict_types=1);

namespace DoctrineMigrations;

use Doctrine\DBAL\Schema\Schema;
use Doctrine\Migrations\AbstractMigration;

final class Version20220221174647 extends AbstractMigration
{
    public function getDescription(): string
    {
        return '';
    }

    public function up(Schema $schema): void
    {
        
    }

    public function down(Schema $schema): void
    {
        // example with one table but migration generates this for all varchar column, in all tables
        $this->addSql('ALTER TABLE address CHANGE company_name company_name VARCHAR(100) DEFAULT NULL COLLATE `utf8mb4_unicode_ci`, CHANGE address_line1 address_line1 VARCHAR(100) DEFAULT NULL COLLATE `utf8mb4_unicode_ci`, CHANGE zip_code zip_code VARCHAR(10) DEFAULT NULL COLLATE `utf8mb4_unicode_ci`, CHANGE city city VARCHAR(50) DEFAULT NULL COLLATE `utf8mb4_unicode_ci`, CHANGE country country VARCHAR(50) DEFAULT NULL COLLATE `utf8mb4_unicode_ci`, CHANGE tax_identifier tax_identifier VARCHAR(255) DEFAULT NULL COLLATE `utf8mb4_unicode_ci`');
    }
}

My SHOW CREATE TABLE address

CREATE TABLE `address` (
  `id` int NOT NULL AUTO_INCREMENT,
  `company_name` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `address_line1` varchar(100) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `zip_code` varchar(10) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `city` varchar(50) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `country` varchar(50) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  `updated_at` datetime NOT NULL,
  `created_at` datetime NOT NULL,
  `tax_identifier` varchar(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci DEFAULT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=47 DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_unicode_ci

SHOW VARIABLES LIKE 'character\_set\_%'; result:

And SELECT @@character_set_database, @@collation_database; result:

@@character_set_database: utf8mb4
@@collation_database: utf8mb4_unicode_ci

I also set doctrine config to:

doctrine:
    dbal:
        url: '%env(resolve:DATABASE_URL)%'

        charset: utf8mb4
        default_table_options:
            charset: utf8mb4
            collate: utf8mb4_unicode_ci

CodePudding user response：

A have the same problem. It has been going on for about 3 weeks. The only solution i found is delete generated empty migration.

CodePudding user response：

It is for sure a bug. I am coding an app using Symfony and the same thing started to happen between migrations with versions 2022.02.08 and 2022.02.09.